package com.powerbank.user.service.impl;

import com.powerbank.user.service.ThirdPartyPaymentAdapter;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

/**
 * 微信支付适配器实现
 * 注意：这是一个模拟实现，实际项目中需要集成微信支付SDK
 */
@Slf4j
@Service("wechatAdapter")
public class WechatPaymentAdapter implements ThirdPartyPaymentAdapter {

    @Override
    public Map<String, String> createPayment(String orderNo, BigDecimal amount, String subject, 
                                             String description, String clientIp, String notifyUrl, String returnUrl) {
        log.info("创建微信支付订单 - 订单号: {}, 金额: {}, 主题: {}", orderNo, amount, subject);
        
        // TODO: 实际项目中这里会调用微信支付SDK创建支付订单
        // WXPayConfig config = new WXPayConfig();
        // WXPay wxpay = new WXPay(config);
        // Map<String, String> data = new HashMap<>();
        // ...
        
        // 模拟返回微信支付信息
        Map<String, String> result = new HashMap<>();
        result.put("platformOrderId", "WX" + System.currentTimeMillis());
        result.put("paymentUrl", "weixin://wxpay/bizpayurl?pr=" + UUID.randomUUID().toString());
        result.put("qrCodeData", "weixin://wxpay/bizpayurl?pr=" + UUID.randomUUID().toString());
        result.put("status", "CREATED");
        result.put("message", "微信支付订单创建成功");
        
        // 微信支付特有的参数（用于APP支付）
        result.put("appid", "wx1234567890");
        result.put("partnerid", "1234567890");
        result.put("prepayid", "wx" + System.currentTimeMillis());
        result.put("package", "Sign=WXPay");
        result.put("noncestr", UUID.randomUUID().toString().replace("-", ""));
        result.put("timestamp", String.valueOf(System.currentTimeMillis() / 1000));
        result.put("sign", "mock_signature_" + UUID.randomUUID().toString());
        
        log.info("微信支付订单创建成功 - 平台订单号: {}", result.get("platformOrderId"));
        return result;
    }

    @Override
    public Map<String, String> queryPaymentStatus(String platformOrderId) {
        log.info("查询微信支付状态 - 平台订单号: {}", platformOrderId);
        
        // TODO: 实际项目中这里会调用微信支付SDK查询支付状态
        // Map<String, String> data = new HashMap<>();
        // data.put("out_trade_no", platformOrderId);
        // Map<String, String> result = wxpay.orderQuery(data);
        
        // 模拟返回支付状态
        Map<String, String> result = new HashMap<>();
        result.put("platformOrderId", platformOrderId);
        result.put("platformTransactionId", "WX_TXN" + System.currentTimeMillis());
        result.put("status", "SUCCESS"); // SUCCESS, FAILED, WAITING
        result.put("amount", "99.00");
        result.put("paymentTime", String.valueOf(System.currentTimeMillis()));
        
        return result;
    }

    @Override
    public Map<String, String> handleCallback(String callbackData) {
        log.info("处理微信支付回调 - 回调数据长度: {}", callbackData.length());
        
        // TODO: 实际项目中这里会验证微信支付回调签名并解析数据
        // 1. 验证签名
        // 2. 解析XML数据
        // 3. 返回处理结果
        
        // 模拟解析回调数据
        Map<String, String> result = new HashMap<>();
        result.put("platformOrderId", "WX" + System.currentTimeMillis());
        result.put("platformTransactionId", "WX_TXN" + System.currentTimeMillis());
        result.put("status", "SUCCESS");
        result.put("amount", "99.00");
        result.put("verified", "true");
        
        return result;
    }

    @Override
    public Map<String, String> refund(String platformOrderId, String platformTransactionId, 
                                      BigDecimal refundAmount, BigDecimal totalAmount, String refundReason) {
        log.info("申请微信退款 - 平台订单号: {}, 退款金额: {}, 原始金额: {}", 
                platformOrderId, refundAmount, totalAmount);
        
        // TODO: 实际项目中这里会调用微信支付SDK申请退款
        // Map<String, String> data = new HashMap<>();
        // data.put("out_trade_no", platformOrderId);
        // data.put("out_refund_no", "REFUND" + System.currentTimeMillis());
        // data.put("total_fee", totalAmount.multiply(new BigDecimal("100")).toString());
        // data.put("refund_fee", refundAmount.multiply(new BigDecimal("100")).toString());
        // Map<String, String> result = wxpay.refund(data);
        
        // 模拟退款结果
        Map<String, String> result = new HashMap<>();
        result.put("refundId", "WX_REFUND" + System.currentTimeMillis());
        result.put("status", "SUCCESS");
        result.put("refundAmount", refundAmount.toString());
        result.put("refundTime", String.valueOf(System.currentTimeMillis()));
        result.put("message", "退款申请成功");
        
        return result;
    }

    @Override
    public String getPaymentMethod() {
        return "WECHAT";
    }
}